Turn an audio track into a video, with a live waveform.
Perfect for platforms that need a video file, not just a sound file — add an optional cover image and export a clip with a reactive frequency visualizer.
History
Saved only in this browser — survives a refresh, never uploaded anywhere. Use Clear if you want it gone.
How this works
The canvas draws your cover image (or a plain dark background) with a live frequency-bar visualizer reacting to the actual audio, while the browser records both the canvas and the audio track together into a single video file in real time — so processing takes as long as the track itself.
Nothing leaves your device
Recording happens locally using the MediaRecorder and Web Audio APIs — the audio file and the resulting video never touch a server.
Why would I need a video of an audio file?
Plenty of platforms — most video-first social apps and some podcast directories — don't accept plain audio uploads. Wrapping a track in a simple visual gives you a file those platforms will actually take, without needing separate video-editing software.
What if I don't add a cover image?
The tool falls back to a plain dark background behind the waveform visualizer, so you can still export a video with just the audio file and nothing else prepared in advance.